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參數(shù)資料
| 型號(hào)： | T7290A |
| 廠商： | Lineage Power |
| 英文描述： | DS1/T1/CEPT/E1 Line Interface(DS1/T1/CEPT/E1 線接口) |
| 中文描述： | DS1/T1/CEPT/E1線路接口（DS1/T1/CEPT/E1線接口） |
| 文件頁(yè)數(shù)： | 4/24頁(yè) |
| 文件大?。?/td> | 420K |
| 代理商： | T7290A |
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Data Sheet
April 1998
T7290A DS1/T1/CEPT/E1 Line Interface
4
Lucent Technologies Inc.
Pin Information
Figure 2. Pin Diagram
Table 1. Pin Descriptions
* I = input, O = output, I
u
= input with pull-up, I
d
= input with pull-down.
Pin
Symbol
EC1, EC3, EC2
Type
*
I
d
Name/Function
1, 27, 28
Equalizer/Rate Control 1—3.
Three control leads for selecting transmit
equalization.
3-State (Active-Low).
This pin is set low to configure all output buffers into
a high-impedance state during in-circuit testing.
5 V
±
5% Analog Supply.
The powerup rise time (0 V to 4.75 V) must be
less than 15 ms.
Analog Ground.
Receive Bipolar Ring.
Negative bipolar receive data.
Receive Bipolar Tip.
Positive bipolar receive data.
Mode Select 2 and 1.
Two control leads for selecting clock and data paths
through the jitter attenuator.
Loopback Control B and A.
Two control leads for selecting clock and data
loopback paths.
Transmit Blue Signal (AIS).
This pin is set high to transmit the blue signal
(all 1s). A remote loopback (LP2) has priority over the transmit blue signal.
Input Loss of Signal.
This pin is set high if analog loss of signal at the
receiver inputs is detected or if digital loss of signal of the recovered data is
detected. IN-LOS can be tied directly to TBS to initiate a transmit blue signal
upon loss of signal.
2
TRI
I
u
3
V
DDA
—
4
5
6
GND
A
R1
T1
—
I
I
I
d
7, 8
MODE2, MODE1
9, 10
LOOPB, LOOPA
I
d
11
TBS
I
d
12
IN-LOS
O
T7290A
1
2
3
5
6
7
8
9
10
11
12
13
14
4
24
23
22
21
20
19
18
17
16
15
EC1
V
DDA
GND
A
R1
T1
MODE2
MODE1
LOOPB
LOOPA
TBS
IN-LOS
ESA
OUT-LOS
EC2
EC3
GND
D
V
DDD
T2
RNDATA
RPDATA
RCLK
TNDATA
TPDATA
TCLK
EXCLK
CS
25
26
27
28
R2
TRI
5-1810 (F).a
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T-7290A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A-EL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A--EL | 制造商:Alcatel-Lucent 功能描述:DATACOM, PCM TRANSCEIVER, PDSO28 |
| T7290A-EL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:T7290A DS1/T1/CEPT Line Interface |
| T-7290A--EL-DT | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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